Update which requirement from 6.0.3 to 7.0.2 (#3075)

Updates the requirements on [which](https://github.com/harryfei/which-rs) to permit the latest version.
- [Release notes](https://github.com/harryfei/which-rs/releases)
- [Changelog](https://github.com/harryfei/which-rs/blob/master/CHANGELOG.md)
- [Commits](harryfei/which-rs@6.0.3...7.0.2)

---
updated-dependencies:
- dependency-name: which
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.toml

@@ -126,7 +126,7 @@ typed-builder = "0.20.0" # Implement the builder pattern at compiletime
 typeid = "1.0.0" # Safe type_eq that doesn't rely on std specialization
 unicorn-engine = "2.0.1" # Used in libafl_unicorn
 uuid = { version = "1.10.0", features = ["serde", "v4"] }
-which = "6.0.3"
+which = "7.0.2"
 windows = "0.59.0"
 z3 = "0.12.1"
 fs2 = "0.4.3" # Used by OnDisk Corpus for file locking